Air quality warning issued along Maine coast

The Maine Department of Environmental Protection says elevated ozone concentrations are expected to created unhealthy air for sensitive groups Wednesday afternoon and evening between Kittery and Georgetown. The unhealthy conditions are expected to spread up the coast Thursday, possibly as far east as Mount Desert Island or even to the Canadian border.

Officials say people in the affected areas are encouraged to reduce strenuous outdoor activities, close windows and circulate indoor air with a fan or air conditioner.